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A breeding bird atlas is a special kind of book. For the nature lovers and birders who participate in breeding bird surveys, the atlas represents hours, often hundreds of hours, of volunteer time spent within a community of citizen scientists doing what they love, observing birds. So, what exactly does a breeding bird atlas contain?
The threat of extinction of such iconic Florida bird prompted State and Federal agencies to find solutions to stop and reverse the declining trend. It would take years to restore such large scale landscape changes, perhaps not soon enough to reverse the kite’s population downward trend. Kites now nest there and are fairly common.
The usual way to find an owl would be to listen to its territorial call in the breeding season (to listen and not to lure it – I oppose the playback ), but this species is even less vocal than most other owls. Egg-laying starts in late March to early April and they remain in the vicinity till early June.
The goal of Around the World For Penguins is simple: Describe the 18 species of penguin and their breeding grounds “from the perspective of a traveller.” Plantema gives highly detailed information about the weather, terrain, ownership of and access to the islands and coasts where penguins breed. Press, 2011).
Some of these trends may, however, be due to a bias in coverage by ornithologists of safer areas such as national parks and protected swamps that afford easier accessibility and comforts.” Studies on improving ostrich egg hatchability. Also, I learned that in the US , ostrich eggs are priced at $40-$75.
With only 3-5 eggs per breeding attempt, it is less productive than the European Robin with its 4-7 eggs. Both species are classified as Least Concern, and the population trend is stable. While Japanese people are generally known for their work ethics, this does not quite seem to apply to the Japanese Robin. A bit later.
A section in the Appendix, “Rare Shorebird Vagrants,” lists 16 additional species that do not show up annually in North America but who have more than ten records; the list notes where the species breed and where their vagrant paths have taken them within North American borders.
Of course, it is hard to resist looking at a paper titled “Host personality predicts cuckoo egg rejection in Daurian redstarts” Basically, the personality of a female redstart (bold or shy) predicts the responses to parasitic eggs – bold hosts are more likely to reject parasitic eggs.
All the inhabited continents except Africa have experienced bird extinctions; however the 2012 update of the IUCN Red List shows a startling, but not altogether unexpected, trend in that more and more of our bird species are facing extinction. A pair of Hooded Vultures in Selous Game Reserve, Tanzania by Adam Riley.
In the non-breeding season, male Baya Weavers sometimes enter the basket-making trade, often with considerable success. Meanwhile, the females seem to have a much more relaxing life, at least in this early stage of the breeding season. You can see why here. Trust me, the species name makes sense for the male, though not for the female.
There are probably other major trends that depend, for example, on latitude and timing. The clifftop habitats along rocky shores of the North Atlantic (on both sides of the pond) abound in bird biomass during breeding bouts, for instance. Paul and St. Peter islands.
Oil begins to wash up on the beaches throughout May and June of 2010 May 6, 2010 Oil washes ashore on the Chandeleur Islands off the Louisiana coast, an important nesting and breeding area for many bird species. The babies that hatched from these eggs were released on Florida’s east coast.
During the breeding season, some Cattle Egrets look like teenage girls who have just discovered the existence of make-up, and consequently massively overdo it. Still, the ability to identify a leaf warbler by song is a worrying development on the road to becoming a very nerdy birder. It is probably all downhill from here. What’s next?
Unfortunately, the Ashy Drongos did not exactly do what he predicted that they would do – mob potential predators more frequently during the breeding season and mob the more dangerous predator (in this case, the Black Eagle) more intensely. If you do not want to be put in a cage, it presumably helps to be a bit aggressive.
An additional benefit would be less nest predation by tidal mudflat crabs, the primary cause of Reed Parrotbill egg predation in tidal reed-bed habitat ( source ). Apparently, this is part of a broader trend – it has also been observed in Taiwan ( source ). Surprisingly, they only stay on the breeding grounds for about 5 weeks.
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